PIC16C74B-04/PQ Microchip Technology, PIC16C74B-04/PQ Datasheet - Page 7

• Manufacturer Part Number: PIC16C74B-04/PQ
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,QFP,44PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C74B-04/PQ

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Size: 7KB (4K x 14)
• Program Memory Type: OTP
• Ram Size: 192 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-MQFP, 44-PQFP
• Processor Series: PIC16C
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 192 B
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 4 MHz
• Number Of Programmable I/os: 33
• Number Of Timers: 8
• Operating Supply Voltage: 2.5 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: ICE2000, DM163022
• Minimum Operating Temperature: 0 C
• On-chip Adc: 8 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

3. Module: RESET
 2003 Microchip Technology Inc.
Section 13.4.1 (“POWER-ON RESET (POR)”) has
been amended to clarify the minimum specifica-
tions required for MCLR in order to reset the
PIC16CXXX. The following paragraphs and figure
have been added:
If a MCLR pulse occurs that is less that the mini-
mum specification (parameter #30), improper
device operation can occur.
If the minimum specification cannot be met, then
an external circuit must be used to ensure that any
pulse width less than the specification will be
filtered before it reaches the MCLR pin.
A possible circuit to remedy this is shown in
Figure 6. This circuit works by delaying the MCLR
release following a power-up. If no delay is
required, the capacitor may be omitted.
An alternative would be to use a supervisory circuit
to control MCLR.
Design validation should be performed to verify
that the application works as expected.
PIC16C63A/65B/73B/74B
FIGURE 6:
V
DD
4.7 kΩ
0.01 µF ≤ C1 ≤ 0.1 µF
R1
C1
(optional)
≤ R1 ≤ 100 kΩ
MCLR EXTERNAL CIRCUIT
MCLR
PIC16CXXX
DS80048C-page 7